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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@include file="/WEB-INF/views/common/taglib.jsp"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html lang="en">
<head>
    <title>three.js webgl - loaders - OBJ loader</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
    <style>
        body {
            font-family: Monospace;
            background-color: #000;
            color: #fff;
            margin: 0px;
            overflow: hidden;
        }
        #info {
            color: #fff;
            position: absolute;
            top: 10px;
            width: 100%;
            text-align: center;
            z-index: 100;
            display:block;
        }
        #info a, .button { color: #f00; font-weight: bold; text-decoration: underline; cursor: pointer }
    </style>
</head>

<body>
<div id="info">
    <a href="http://threejs.org" target="_blank">three.js</a> - OBJLoader test
</div>

<script src="${ctx}/js/threejs/build/three.js" type="text/javascript"></script>
<script src="${ctx}/js/threejs/src/loaders/ObjectLoader.js"></script>
<script src="${ctx}/js/threejs/src/loaders/OBJLoader.js"></script>
<script>

    var container;

    var camera, scene, renderer;

    var mouseX = 0, mouseY = 0;

    var windowHalfX = window.innerWidth / 2;
    var windowHalfY = window.innerHeight / 2;


    init();
    animate();


    function init() {

        container = document.createElement( 'div' );
        document.body.appendChild( container );

        camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 2000 );
        camera.position.z = 250;

        // scene

        scene = new THREE.Scene();

        var ambient = new THREE.AmbientLight( 0x101030 );
        scene.add( ambient );

        var directionalLight = new THREE.DirectionalLight( 0xffeedd );
        directionalLight.position.set( 0, 0, 1 );
        scene.add( directionalLight );

        // texture

        var manager = new THREE.LoadingManager();
        manager.onProgress = function ( item, loaded, total ) {

            console.log( item, loaded, total );

        };

        var texture = new THREE.Texture();

        var onProgress = function ( xhr ) {
            if ( xhr.lengthComputable ) {
                var percentComplete = xhr.loaded / xhr.total * 100;
                console.log( Math.round(percentComplete, 2) + '% downloaded' );
            }
        };

        var onError = function ( xhr ) {
        };


        var loader = new THREE.ImageLoader( manager );
        loader.load( '/textures/UV_Grid_Sm.jpg', function ( image ) {

            texture.image = image;
            texture.needsUpdate = true;

        } );

        // model

        var loader = new THREE.OBJLoader( manager );
        loader.load( '/object/3d_model.obj', function ( object ) {

            object.traverse( function ( child ) {

                if ( child instanceof THREE.Mesh ) {

                    child.material.map = texture;

                }

            } );

            object.position.y = - 95;
            scene.add( object );

        }, onProgress, onError );

        //

        renderer = new THREE.WebGLRenderer();
        renderer.setPixelRatio( window.devicePixelRatio );
        renderer.setSize( window.innerWidth, window.innerHeight );
        container.appendChild( renderer.domElement );

        document.addEventListener( 'mousemove', onDocumentMouseMove, false );

        //

        window.addEventListener( 'resize', onWindowResize, false );

    }

    function onWindowResize() {

        windowHalfX = window.innerWidth / 2;
        windowHalfY = window.innerHeight / 2;

        camera.aspect = window.innerWidth / window.innerHeight;
        camera.updateProjectionMatrix();

        renderer.setSize( window.innerWidth, window.innerHeight );

    }

    function onDocumentMouseMove( event ) {

        mouseX = ( event.clientX - windowHalfX ) / 2;
        mouseY = ( event.clientY - windowHalfY ) / 2;

    }

    //

    function animate() {

        requestAnimationFrame( animate );
        render();

    }

    function render() {

        camera.position.x += ( mouseX - camera.position.x ) * .05;
        camera.position.y += ( - mouseY - camera.position.y ) * .05;

        camera.lookAt( scene.position );

        renderer.render( scene, camera );

    }

</script>

</body>
</html>
